shairport-sync: enable Airplay 2 for shairport-sync-openssl only #26880

Job	Run time
Test Formalities / Test Formalities	20s
Feeds Package Test Build / Test arm_cortex-a9_vfpv3-d16	31m 6s
Feeds Package Test Build / Test i386_pentium-mmx	28m 55s
Feeds Package Test Build / Test mipsel_24kc	25m 49s
Feeds Package Test Build / Test aarch64_generic	31m 57s
Feeds Package Test Build / Test arm_cortex-a15_neon-vfpv4	29m 6s
Feeds Package Test Build / Test powerpc_8548	28m 0s
Feeds Package Test Build / Test mips_24kc	27m 57s
Feeds Package Test Build / Test x86_64	34m 22s
Feeds Package Test Build / Test riscv64_generic	29m 40s
Feeds Package Test Build / Test powerpc_464fp	26m 57s
	4h 54m 9s

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